Application Practice of Model-Based System Engineering Method in Civil Aircraft Cabin Pressure Control System Design

With the improvement of the complexity of civil aircraft,Model Based Systems Engineering(MBSE) plays more important role in the aircraft design nowadays. In this paper, an architecture design method based on MBSE applied in aircraft cabin pressure control system is introduced. A top-down design process including functional physical architecture analysis is presented to ensure final solution can meet stakeholder needs. Functional architecture produced by functional analysis which transfers stakeholder needs and top-level requirements to design requirements has great effects on physical solution design. Physical architecture which is implementation of functional architecture provides enough detail to synthesize a physical architecture. This paper proposes a framework for efficient architecture based MBSE which can also provide common understanding of the scope and characterization of the system for engineers involved in system design. It shows that the proposed MBSE method significantly improves synthesis of design and integration, and ensure the requirements can be properly implemented